Train pantograph rising and falling state monitoring system and vehicle

Abstract

The invention discloses a train pantograph rising and falling state monitoring system and a vehicle, and the system comprises a display device which is used for displaying the rising and falling state information of a pantograph; the pressure switch is used for acquiring the pressure of the control gas circuit, is closed when the pressure meets a preset value and is disconnected when the pressure is lower than the preset value, and the control gas circuit is used for controlling the pantograph to ascend or descend; the control device is connected with the display equipment and the pressure switch and used for judging whether the pressure switch is closed within first preset time after the pantograph rising instruction is sent out, and if yes, the display equipment is controlled to display that the pantograph is in a rising state; if not, controlling a display device to display a pressure switch fault; the control device is used for judging whether the pressure switch is switched off within a second preset time after the pantograph descending instruction is sent, and if yes, the display device is controlled to display that the pantograph is in a descending state; if not, the display device is controlled to display the pressure switch fault. The accuracy of displaying the state of the pantograph can be improved, and misjudgment caused by faults of the pressure switch is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pantograph monitoring, and more specifically, to a monitoring system for the lifting state of a train pantograph. In addition, the present invention also relates to a vehicle including the above-mentioned monitoring system for the lifting state of a train pantograph. Background Art

[0002] The pantograph plays an important role in electrically driven vehicles. The pantograph is generally installed on the roof of the vehicle and transmits electric energy to the vehicle by sliding contact with the catenary.

[0003] The working principle of the pantograph is as follows: the bow head is raised through a lifting mechanism to bring the pantograph into contact with the catenary to obtain electric energy; when not in use, the pantograph is lowered to avoid wear.

[0004] In the related art, a pressure switch is used to detect whether the pantograph is raised. That is, during operation, when the vehicle issues a pantograph-raising command, the pantograph-raising solenoid valve is energized to control the air passage to ventilate, causing the airbag pressure to increase, so that the pantograph starts to rise. When the pressure switch detects that the pressure value of the control air passage meets the set value, the pressure switch closes, and the display screen in the driver's cab shows that the pantograph is in the raised state; when the pressure switch is disconnected, the display screen shows that the pantograph is in the lowered state.

[0005] However, in this way of detecting whether the pantograph is raised, when the pressure switch fails, there is a false alarm phenomenon. That is, when the pressure switch fails and other circuits are normal, the lifting state of the pantograph shown on the display screen will not match the actual lifting state of the pantograph, which will mislead the driver and affect the normal start of the vehicle.

[0006] Therefore, how to improve the accuracy of the pantograph state display is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0007] In view of this, an object of the present invention is to provide a monitoring system for the lifting state of a train pantograph, which can improve the accuracy of the pantograph state display.

[0008] Another object of the present invention is to provide a vehicle including the above-mentioned monitoring system for the lifting state of a train pantograph, which has high accuracy in pantograph state display.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] A monitoring system for the lifting state of a train pantograph, comprising:

[0011] A display device for displaying the lifting state information of the pantograph;

[0012] A pressure switch is used to obtain the pressure of a control air circuit, close when the pressure meets a preset value, and open when the pressure is lower than the preset value. The control air circuit is used to control the raising or lowering of the pantograph.

[0013] A control device is respectively connected to the display device and the pressure switch, and is used to judge whether the pressure switch closes within a first preset time after the pantograph raising command is issued. If so, it controls the display device to display that the pantograph is in the raised state; if not, it controls the display device to display that the pressure switch fails. The control device is also used to judge whether the pressure switch opens within a second preset time after the pantograph lowering command is issued. If so, it controls the display device to display that the pantograph is in the lowered state; if not, it controls the display device to display that the pressure switch fails.

[0014] Optionally, the control device is further used to judge whether the pressure switch is still in the state after the action at an interval of a third preset time after the pressure switch acts. If so, it controls the display device to display that the pantograph is in the raised state or the lowered state; if not, it controls the display device to display that the pressure switch fails.

[0015] Optionally, it further includes:

[0016] A voltage transformer is connected to the control device and is used to monitor the network voltage of the pantograph.

[0017] The control device is also used to judge whether the pantograph is in the raised state or the lowered state according to the network voltage signal of the pantograph monitored by the voltage transformer.

[0018] When the state of the pantograph determined by the control device according to the network voltage signal corresponds to the state of the pressure switch, it controls the display device to display that the pantograph is in the raised state or the lowered state.

[0019] When the state of the pantograph determined by the control device according to the network voltage signal does not correspond to the state of the pressure switch, it controls the display device to display that the pressure switch fails.

[0020] Optionally, the control device is used to judge whether the network voltage of the pantograph monitored by the voltage transformer is greater than a preset network voltage value and lasts for more than a fourth preset time. If so, it determines that the pantograph is in the raised state; if not, it determines that the pantograph is in the lowered state.

[0021] Optionally, it further includes:

[0022] A video monitor, whose field of view covers the pantograph, is used to monitor the state of the pantograph in real time.

[0023] The video monitor is connected to the control device, and the control device is further configured to control the display device to display that the pantograph is in the raised state or the lowered state when the state of the pantograph monitored by the video monitor corresponds to the state of the pressure switch; and is configured to control the display device to display a pressure switch fault when the state of the pantograph monitored by the video monitor does not correspond to the state of the pressure switch.

[0024] Optionally, it further includes:

[0025] A voltage transformer, connected to the control device, and the control device is further configured to judge whether the pantograph is in the raised state or the lowered state according to the pantograph network voltage signal monitored by the voltage transformer;

[0026] A video monitor, connected to the control device, so that the control device judges whether the pantograph is in the raised state or the lowered state according to the monitoring result of the video monitor;

[0027] When at least one of the voltage transformer and the video monitor monitors that the pantograph is in the raised state, the control device controls the display device to display that the pantograph is in the raised state;

[0028] When at least one of the voltage transformer and the video monitor monitors that the pantograph is in the lowered state, the control device controls the display device to display that the pantograph is in the lowered state.

[0029] Optionally, when at least one of the voltage transformer and the video monitor monitors that the pantograph is in the raised state and the pressure switch is not closed, the control device controls the display device to display a pressure switch fault.

[0030] Optionally, when at least one of the voltage transformer and the video monitor monitors that the pantograph is in the lowered state and the pressure switch is closed, the control device controls the display device to display that the pantograph is stuck or frozen, or to display a pressure switch fault.

[0031] Optionally, when the state of the pantograph monitored by the voltage transformer corresponds to the state of the pressure switch but is different from the state of the pantograph monitored by the video monitor, the control device controls the display device to display that the pantograph has an abnormal operation.

[0032] A vehicle includes any one of the above train pantograph lifting state monitoring systems.

[0033] The pantograph lifting state monitoring system provided by the present invention has the following beneficial effects:

[0034] For this pantograph lifting state monitoring system of the train, not only the action signal of the pressure switch is used as the judgment condition for whether the pantograph is in the raised state or the lowered state, but also the judgment of the action timing of the pressure switch is introduced. That is, when the pressure switch closes within the first preset time after the pantograph raising command is issued, it indicates that the pressure switch closes normally. At this time, the closed state of the pressure switch represents the raised state of the pantograph. Therefore, at this time, the control device controls the display device to display that the pantograph is in the raised state, making the pantograph state displayed by the display device consistent with the actual state of the pantograph. When the pressure switch does not close within the first preset time after the pantograph raising command is issued, the control device controls the display device to display that the pressure switch is faulty, so as to prompt the driver of the pressure switch fault, which is beneficial for the driver to confirm the actual situation of the pantograph and avoid the situation that the display device always displays that the pantograph is in the lowered state due to the non - closing of the pressure switch while the pantograph has actually been raised.

[0035] When the pressure switch disconnects within the second preset time after the pantograph lowering command is issued, it indicates that the pressure switch disconnects normally. At this time, the disconnected state of the pressure switch represents the lowered state of the pantograph. Therefore, at this time, the control device controls the display device to display that the pantograph is in the lowered state, making the pantograph state displayed by the display device consistent with the actual state of the pantograph. When the pressure switch does not disconnect within the second preset time after the pantograph lowering command is issued, the control device controls the display device to display that the pressure switch is faulty, so as to prompt the driver of the pressure switch fault, which is beneficial for the driver to confirm the actual situation of the pantograph and avoid the situation that the display device always displays that the pantograph is in the raised state due to the pressure switch remaining closed while the pantograph has actually been lowered.

[0036] Thus, it can be seen that this pantograph lifting state monitoring system of the train can improve the accuracy of the pantograph state display and reduce the misjudgment caused by the pressure switch fault. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings described below are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0038] Figure 1 It is the structural block diagram of the pantograph lifting state monitoring system provided by the first specific embodiment of the present invention;

[0039] Figure 2 For Figure 1 the first control method logic diagram of the control device in

[0040] Figure 3 is Figure 1 the logic diagram of the second control mode of the control device in

[0041] Figure 4 is Figure 1 the logic diagram of the third control mode of the control device in

[0042] Figure 5 is the structural block diagram of the pantograph lifting state monitoring system provided by the second specific embodiment of the present invention;

[0043] Figure 6 is Figure 5 the logic diagram of the control mode of the control device in

[0044] Figure 7 is the structural block diagram of the pantograph lifting state monitoring system provided by the third specific embodiment of the present invention;

[0045] Figure 8 is Figure 7 the logic diagram of the control mode of the control device in

[0046] Figure 9 is the structural block diagram of the pantograph lifting state monitoring system provided by the fourth specific embodiment of the present invention;

[0047] Figure 10 is Figure 9 the logic diagram of the control mode of the control device in Specific Embodiments

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] The core of the present invention is to provide a pantograph lifting state monitoring system for a train, which can improve the accuracy of pantograph state display. Another core of the present invention is to provide a vehicle including the above pantograph lifting state monitoring system for a train, which has high accuracy of pantograph state display.

[0050] Please refer to Figure 1 、 Figure 2 and Figure 3, an embodiment of the present invention provides a monitoring system for the lifting state of a train pantograph, which includes a display device, a pressure switch, and a control device. The display device is used to display the lifting state information of the pantograph; the pressure switch is used to obtain the pressure of the control air circuit, close when the pressure meets a preset value, and open when the pressure is lower than the preset value. The control air circuit is used to control the pantograph to rise or fall; the control device is respectively connected to the display device and the pressure switch. The control device is used to judge whether the pressure switch closes within a first preset time after the ascending pantograph command is issued. If so, it controls the display device to display that the pantograph is in the ascending state; if not, it controls the display device to display a pressure switch fault; the control device is also used to judge whether the pressure switch opens within a second preset time after the descending pantograph command is issued. If so, it controls the display device to display that the pantograph is in the descending state; if not, it controls the display device to display a pressure switch fault.

[0051] That is to say, the embodiment of the present invention not only uses the action signal of the pressure switch as the judgment condition for the ascending or descending state of the pantograph, but also introduces the judgment of the action timing of the pressure switch. That is, when the pressure switch closes within the first preset time after the ascending pantograph command is issued, it indicates that the pressure switch closes normally. At this time, the closed state of the pressure switch represents the ascending state of the pantograph. Therefore, at this time, the control device controls the display device to display that the pantograph is in the ascending state, so that the pantograph state displayed by the display device is consistent with the actual state of the pantograph; when the pressure switch does not close within the first preset time after the ascending pantograph command is issued, the control device controls the display device to display a pressure switch fault to prompt the driver of the pressure switch fault, which is beneficial for the driver to confirm the actual situation of the pantograph and avoid the situation where the display device always displays that the pantograph is in the descending state due to the non-closure of the pressure switch while the pantograph has actually risen.

[0052] When the pressure switch opens within the second preset time after the descending pantograph command is issued, it indicates that the pressure switch opens normally. At this time, the open state of the pressure switch represents the descending state of the pantograph. Therefore, at this time, the control device controls the display device to display that the pantograph is in the descending state, so that the pantograph state displayed by the display device is consistent with the actual state of the pantograph; when the pressure switch does not open within the second preset time after the descending pantograph command is issued, the control device controls the display device to display a pressure switch fault to prompt the driver of the pressure switch fault, which is beneficial for the driver to confirm the actual situation of the pantograph and avoid the situation where the display device always displays that the pantograph is in the ascending state due to the pressure switch remaining closed while the pantograph has actually descended.

[0053] It can be seen that this monitoring system for the lifting state of the train pantograph can improve the accuracy of the pantograph state display and reduce the misjudgment caused by the pressure switch fault.

[0054] It should be noted that the specific durations of the first preset time and the second preset time in this embodiment are not limited. For example, the first preset time can be determined according to the maximum duration required for the pantograph to rise, and the second preset time can be determined according to the maximum duration required for the pantograph to fall. For example, the first preset time is 40s. That is, when the pressure switch closes within 40s after the pantograph-raising command is issued, the display device shows that the pantograph is in the raised state; when the pressure switch does not close within 40s after the pantograph-raising command is issued, the display device shows that the pressure switch has a fault.

[0055] Please refer to Figure 4 , in order to further improve the accuracy of the pantograph state display, in some embodiments, the control device is further configured to, after the pressure switch acts, determine whether the pressure switch is still in the state after the action after an interval of a third preset time. If so, the control device controls the display device to display that the pantograph is in the raised state or the lowered state; if not, the control device controls the display device to display that the pressure switch has a fault.

[0056] That is to say, in this embodiment, the state of the pressure switch is judged twice to determine whether the pressure switch is normally closed or opened. That is, after the pressure switch acts, it is judged whether the pressure switch is still in the state after the action after an interval of a third preset time. By judging whether the two states of the pressure switch are the same (both in the closed state or both in the open state), it is determined whether the state of the pantograph displayed by the display device is correct.

[0057] For example, when the pressure switch closes and the pressure switch is still in the closed state after an interval of the third preset time, it indicates that the pressure switch is normally closed. At this time, the display device shows that the pantograph is in the raised state, which is the same as the actual state of the pantograph. When the pressure switch closes, but the pressure switch is not in the closed state after an interval of the third preset time, it may be that the pressure switch opens in advance, which does not mean that the pantograph is in the lowered state. Therefore, at this time, the display device does not show that the pantograph is in the lowered state, but shows that the pressure switch has a fault to prompt the driver that the pressure switch is abnormal, which is beneficial for the driver to confirm the actual situation of the pantograph. When the pressure switch opens and the pressure switch is still in the open state after an interval of the third preset time, it indicates that the pressure switch is normally open. At this time, the display device shows that the pantograph is in the lowered state, which is the same as the actual state of the pantograph. When the pressure switch opens, but the pressure switch is in the closed state after an interval of the third preset time, it may be that the pressure switch closes in advance, which does not mean that the pantograph is in the raised state. Therefore, at this time, the display device does not show that the pantograph is in the raised state, but shows that the pressure switch has a fault to prompt the driver that the pressure switch is abnormal, which is beneficial for the driver to confirm the actual situation of the pantograph. It can be seen that this solution can further improve the accuracy of the pantograph state display and reduce the misjudgment caused by the pressure switch fault.

[0058] It should be noted that the specific duration of the third preset time in this embodiment is not limited. For example, the third preset time can be 10 ms. That is, after the pressure switch is closed, it is determined again whether the pressure switch is still in the closed state after an interval of 10 ms. Or, after the pressure switch is opened, it is determined again whether the pressure switch is still in the open state after an interval of 10 ms.

[0059] In addition, please refer to Figure 5 and Figure 6 , in some embodiments, the pantograph lifting state monitoring system of the train further includes a voltage transformer for monitoring the network voltage of the pantograph. The voltage transformer is connected to the control device; the control device is further configured to determine whether the pantograph is in the raised state or the lowered state according to the network voltage signal of the pantograph monitored by the voltage transformer; when the state of the pantograph determined by the control device according to the network voltage signal corresponds to the state of the pressure switch, the control display device displays that the pantograph is in the raised state or the lowered state; when the state of the pantograph determined by the control device according to the network voltage signal does not correspond to the state of the pressure switch, the control display device displays that the pantograph is stuck or frozen, or displays a pressure switch failure.

[0060] That is to say, this embodiment uses a method that combines monitoring the network voltage of the pantograph by the voltage transformer and the action of the pressure switch to determine whether the pantograph is in the raised state or the lowered state, which is equivalent to using two methods to verify each other to ensure the accuracy of the display of the pantograph state by the display device, and further reduce the situation where the display device displays incorrectly due to the pressure switch failure.

[0061] When the state of the pantograph determined by the control device according to the network voltage signal corresponds to the state of the pressure switch, that is, when the control device determines that the pantograph is in the raised state and the pressure switch is in the closed state according to the network voltage signal, it indicates that the pantograph has risen. At this time, the display device displays that the pantograph is in the raised state; when the control device determines that the pantograph is in the lowered state and the pressure switch is in the unclosed state according to the network voltage signal, it indicates that the pantograph has descended. At this time, the display device displays that the pantograph is in the lowered state.

[0062] When the state of the pantograph determined by the control device according to the network voltage signal does not correspond to the state of the pressure switch, that is, when the control device determines that the pantograph is in the raised state and the pressure switch is not closed, it indicates that there are problems such as premature disconnection or delayed closing of the pressure switch. At this time, the display device displays a pressure switch failure; when the control device determines that the pantograph is in the lowered state and the pressure switch is closed, it indicates that the pantograph is stuck or frozen, or indicates that there are defects such as premature closing or delayed disconnection of the pressure switch. At this time, the display device displays that the pantograph is stuck or frozen, or displays a pressure switch failure.

[0063] Further, in this embodiment, there is no limitation on the specific manner in which the control device determines whether the pantograph is in the raised state or the lowered state based on the line voltage signal of the pantograph monitored by the voltage transformer, as long as it is possible to determine whether the pantograph is in the raised state or the lowered state based on the line voltage of the pantograph monitored by the voltage transformer.

[0064] In some embodiments, the control device is configured to determine whether the line voltage of the pantograph monitored by the voltage transformer is greater than a preset line voltage value and lasts for more than a fourth preset time. If so, it is determined that the pantograph is in the raised state; if not, it is determined that the pantograph is in the lowered state.

[0065] That is to say, when the line voltage of the pantograph monitored by the voltage transformer satisfies the following conditions: that is, it is greater than the preset line voltage value and lasts for more than a fourth preset time, it indicates that the pantograph is in the raised state; if the line voltage of the pantograph monitored by the voltage transformer does not satisfy this condition, it indicates that the pantograph is in the lowered state. That is, when the line voltage of the pantograph monitored by the voltage transformer is greater than the preset line voltage value and lasts for more than a fourth preset time, the control device controls the display device to display that the pantograph is in the raised state; when the line voltage of the pantograph monitored by the voltage transformer does not satisfy the above conditions, the control device controls the display device to display that the pantograph is in the lowered state.

[0066] In addition, please refer to Figure 7 and Figure 8 , in some embodiments, the train pantograph lifting state monitoring system further includes a video monitor. The field of view of the video monitor covers the pantograph and is used to monitor the state of the pantograph in real time; the video monitor is connected to the control device, and the control device is further configured to control the display device to display that the pantograph is in the raised state or the lowered state when the state of the pantograph monitored by the video monitor corresponds to the state of the pressure switch; and is configured to control the display device to display a pressure switch failure when the state of the pantograph monitored by the video monitor does not correspond to the state of the pressure switch.

[0067] That is to say, in this embodiment, a method combining the actions of the video monitor and the pressure switch is used to determine whether the pantograph is in the raised state or the lowered state, which is equivalent to using two methods to verify each other to ensure the accuracy of the display device in displaying the state of the pantograph and further reduce the situation where the display device displays incorrectly due to a pressure switch failure.

[0068] When the state of the pantograph monitored by the video monitor corresponds to the state of the pressure switch, that is, when the video monitor monitors that the pantograph is in the raised state and the pressure switch is in the closed state, it indicates that the pantograph is raised. At this time, the display device displays that the pantograph is in the raised state; when the video monitor monitors that the pantograph is in the lowered state and the pressure switch is in the open state, it indicates that the pantograph is lowered. At this time, the display device displays that the pantograph is in the lowered state.

[0069] When the state of the pantograph monitored by the video monitor does not correspond to the state of the pressure switch, that is, when the video monitor monitors that the pantograph is in the raised state and the pressure switch is not closed, it indicates that there are problems such as the pressure switch disconnecting in advance or closing with a delay. At this time, the display device displays a pressure switch fault; when the video monitor monitors that the pantograph is in the lowered state and the pressure switch is closed, it indicates that there are defects such as the pressure switch closing in advance or disconnecting with a delay. At this time, the display device displays a pressure switch fault.

[0070] In addition, please refer to Figure 9 and Figure 10 In some embodiments, the pantograph lifting state monitoring system of the train further includes a voltage transformer and a video monitor. The voltage transformer and the video monitor are respectively connected to the control device. The control device is further configured to determine whether the pantograph is in the raised state or the lowered state according to the pantograph network voltage signal monitored by the voltage transformer; and determine whether the pantograph is in the raised state or the lowered state according to the monitoring result of the video monitor; when at least one of the voltage transformer and the video monitor monitors that the pantograph is in the raised state, the control device controls the display device to display that the pantograph is in the raised state; when at least one of the voltage transformer and the video monitor monitors that the pantograph is in the lowered state, the control device controls the display device to display that the pantograph is in the lowered state.

[0071] That is to say, in this embodiment, a method combining the actions of the voltage transformer, the video monitor and the pressure switch is used to determine whether the pantograph is in the raised state or the lowered state, which is equivalent to using three methods to verify each other to ensure the accuracy of the display device in displaying the state of the pantograph, and further reduce the situation where the display device displays incorrectly due to the pressure switch fault.

[0072] In this embodiment, the priority of the monitoring results of the voltage transformer and the video monitor is higher than the priority of the pressure switch action. When at least one of the voltage transformer and the video monitor monitors the state of the pantograph, the state of the pantograph is confirmed, weakening the role of the pressure switch and avoiding the situation where the display device displays incorrectly due to the pressure switch fault.

[0073] Further, in some embodiments, when at least one of the voltage transformer and the video monitor monitors that the pantograph is in the raised state and the pressure switch is not closed, the control device controls the display device to display a pressure switch fault.

[0074] It can be understood that when at least one of the voltage transformer and the video monitor detects that the pantograph is in the raised state and the pressure switch is closed, it indicates that the raised state of the pantograph monitored by the pressure switch is consistent with the raised state of the pantograph monitored by at least one of the voltage transformer and the video monitor. At this time, it indicates that the pressure switch is working properly. When at least one of the voltage transformer and the video monitor detects that the pantograph is in the raised state and the pressure switch is not closed, it indicates that the pressure switch has opened in advance or closed with a delay, etc. At this time, the display device displays a pressure switch fault to prompt the driver that the pressure switch is abnormal, which is beneficial for the driver to confirm the actual situation of the pantograph.

[0075] Further, in some embodiments, when at least one of the voltage transformer and the video monitor detects that the pantograph is in the lowered state and the pressure switch is closed, the control device controls the display device to display that the pantograph is stuck or frozen, or displays a pressure switch fault.

[0076] Similarly, when at least one of the voltage transformer and the video monitor detects that the pantograph is in the lowered state and the pressure switch is not closed, it indicates that the lowered state of the pantograph monitored by the pressure switch is consistent with the lowered state of the pantograph monitored by at least one of the voltage transformer and the video monitor. At this time, it indicates that the pressure switch is working properly. When at least one of the voltage transformer and the video monitor detects that the pantograph is in the lowered state and the pressure switch is closed, it indicates that the pressure switch is faulty or the pantograph is stuck or frozen, etc. At this time, the display device displays that the pantograph is stuck or frozen, or displays a pressure switch fault to prompt the driver to confirm the actual situation of the pantograph and the pressure switch.

[0077] In addition, in some embodiments, when the state of the pantograph monitored by the voltage transformer corresponds to the state of the pressure switch but is different from the state of the pantograph monitored by the video monitor, the control device controls the display device to display that the pantograph has abnormal operation.

[0078] That is to say, when the monitoring result of the voltage transformer is the same as the monitoring result of the pressure switch, but the monitoring result of the video monitor is different from the monitoring results of the voltage transformer and the pressure switch, it indicates that the state of the pantograph is abnormal. That is, when the video monitor detects that the pantograph is raised, the voltage transformer does not detect that the pantograph is in the raised state, and the pressure switch is not closed, the control device controls the display device to display that the pantograph has abnormal raising; when the video monitor detects that the pantograph is lowered, the voltage transformer does not detect that the pantograph is in the lowered state, and the pressure switch is closed, the control device controls the display device to display that the pantograph has abnormal lowering.

[0079] It can be seen that this solution can monitor the abnormal operation of the pantograph, which is beneficial for timely discovery of abnormal pantograph operation.

[0080] In addition, it should be noted that the above-mentioned various embodiments do not limit the triggering and operation principle of the pantograph movement, and those skilled in the art can refer to related technologies.

[0081] In addition to the above-mentioned train pantograph lifting state monitoring system, the present invention also provides a vehicle including the train pantograph lifting state monitoring system disclosed in the above embodiments. For the structures of other parts of the vehicle, please refer to related technologies and will not be elaborated herein.

[0082] The key point of this embodiment is that the vehicle includes the above-mentioned train pantograph lifting state monitoring system and at least has the beneficial effects of the above-mentioned train pantograph lifting state monitoring system, which will not be elaborated herein.

[0083] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0084] The various embodiments in this specification are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other.

[0085] The above has introduced the train pantograph lifting state monitoring system and vehicle provided by the present invention in detail. Specific examples are used herein to elaborate the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A monitoring system for the lifting state of a train pantograph, characterized in that, Comprising: A display device for displaying the lifting state information of the pantograph; A pressure switch for obtaining the pressure of the control air circuit, closing when the pressure meets a preset value, and disconnecting when the pressure is lower than the preset value, wherein the control air circuit is used to control the pantograph to rise or fall; A control device respectively connected to the display device and the pressure switch, for judging whether the pressure switch closes within a first preset time after the bow-raising command is issued. If so, controlling the display device to display that the pantograph is in the raised state; if not, controlling the display device to display that the pressure switch is faulty; the control device is also used to judge whether the pressure switch disconnects within a second preset time after the bow-lowering command is issued. If so, controlling the display device to display that the pantograph is in the lowered state; if not, controlling the display device to display that the pressure switch is faulty.

2. The pantograph lifting state monitoring system of a train according to claim 1, wherein The control device is further used to judge whether the pressure switch is still in the state after the action after an interval of a third preset time after the pressure switch acts. If so, controlling the display device to display that the pantograph is in the raised state or the lowered state; if not, controlling the display device to display that the pressure switch is faulty.

3. The pantograph lifting state monitoring system for a train according to claim 1 or 2, characterized in that, Further comprising: A voltage transformer connected to the control device for monitoring the line voltage of the pantograph; The control device is also used to judge whether the pantograph is in the raised state or the lowered state according to the line voltage signal of the pantograph monitored by the voltage transformer; When the state of the pantograph determined by the control device according to the line voltage signal corresponds to the state of the pressure switch, controlling the display device to display that the pantograph is in the raised state or the lowered state; When the state of the pantograph determined by the control device according to the line voltage signal does not correspond to the state of the pressure switch, controlling the display device to display that the pressure switch is faulty.

4. The pantograph lifting state monitoring system for a train according to claim 3, characterized in that, The control device is used to judge whether the line voltage of the pantograph monitored by the voltage transformer is greater than a preset line voltage value and lasts for more than a fourth preset time. If so, determining that the pantograph is in the raised state; if not, determining that the pantograph is in the lowered state.

5. The pantograph lifting state monitoring system of a train according to claim 1 or 2, characterized in that Further comprising: A video monitor whose field of view covers the pantograph for real-time monitoring of the state of the pantograph; The video monitor is connected to the control device, and the control device is further used to control the display device to display that the pantograph is in the raised state or the lowered state when the state of the pantograph monitored by the video monitor corresponds to the state of the pressure switch; And used to control the display device to display that the pressure switch is faulty when the state of the pantograph monitored by the video monitor does not correspond to the state of the pressure switch.

6. The pantograph lifting state monitoring system for a train according to claim 1 or 2, characterized in that Further comprising: A voltage transformer connected to the control device, and the control device is also used to judge whether the pantograph is in the raised state or the lowered state according to the line voltage signal of the pantograph monitored by the voltage transformer; A video monitor, connected to the control device, enabling the control device to determine whether the pantograph is in the raised state or the lowered state according to the monitoring result of the video monitor; When at least one of the voltage transformer and the video monitor monitors that the pantograph is in the raised state, the control device controls the display device to display that the pantograph is in the raised state; When at least one of the voltage transformer and the video monitor monitors that the pantograph is in the lowered state, the control device controls the display device to display that the pantograph is in the lowered state.

7. The pantograph lifting state monitoring system for a train according to claim 6, wherein When at least one of the voltage transformer and the video monitor monitors that the pantograph is in the raised state and the pressure switch is not closed, the control device controls the display device to display a pressure switch fault.

8. The pantograph lifting state monitoring system for a train according to claim 6, wherein, When at least one of the voltage transformer and the video monitor monitors that the pantograph is in the lowered state and the pressure switch is closed, the control device controls the display device to display that the pantograph is stuck or frozen, or to display a pressure switch fault.

9. The pantograph lifting state monitoring system for a train according to claim 6, characterized in that When the state of the pantograph monitored by the voltage transformer corresponds to the state of the pressure switch but is different from the state of the pantograph monitored by the video monitor, the control device controls the display device to display an abnormal operation of the pantograph.

10. A vehicle, characterized in that, Including the pantograph lifting state monitoring system according to any one of claims 1-9.

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